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glow switch

noun
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Definition of glow switch

: an inert-gas discharge tube in which one electrode is a bimetallic strip that bends as the tube warms up and contacts the other electrode thus short-circuiting the tube and which is used as a starting switch in fluorescent lamps

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Cite this Entry

“Glow switch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glow%20switch. Accessed 28 Jun. 2022.

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